ZDP Laboratory was certified by the China National Accreditation Service for Conformity Assessment (CNAS).

On Aug.22nd

ZDP was selected “China Top 500 Private Enterprises” for 8 consecutive years.

On Jul.17th

Zhang Shaoqin, member of the Committee of the National People's Congress, vice chairman of the Central Committee of China National Democratic Construction Association, vice chairman of the overseas Chinese Committee of the National People's Congress and vice chairman of the All-China Federation of Trade Unions, visited Shanxi ZDP for inspection and guidance.

On Mar.2nd

Sun Dongsheng, vice chairman of the Central Committee of China National Democratic Construction Association and vice governor of Heilongjiang Province, visited ZDP for inspection and guidance.

President Mr. Zhang Hongshun was awarded “the Model of Non Local Private Entrepreneurs”.

2018

On Dec.12th

Hebei Chengze Trading Co.,Ltd was incorporated.

On Aug. 31st

ZDP ranked 454th of top 500 Chinese manufacturing companies by the value 10.78011 billion CNY, which is the company's sixth consecutive year on the list.

On Aug.24th

Tianhong brand steel pipe won “Hebei Famous Brand” award again, which was the third consequent time for 2011, 2014, 2017 since 2010.

On June 25th

ZDP ranked No. 32 in the list of “Top 100 Private Enterprises in Hebei Province in 2017” and No. 22 in the list of “Top 100 Private Enterprises in Hebei Province in 2017”.

1.20Hong Shunqu Art Society hosted the "Hail to the Master - the 100th Anniversary of Mr. Hou Baolin's Birthday and the New Year Crosstalk Conference of the 18th Winery of Handan in 2018" at Handan Grand Theatre.

2017

In DecemberHebei steel tube industry technology research institute was founded in Qian'an Zhengda General Steel Pipe Co., Ltd.

12.3-12.6Zhengda management "rainbow rainbow Development Forum" was held in Xishuangbanna, Yunnan.

11.30-12.2The company through API expert group audit confirmation.

In AugustQian'an Zhengda passed the certification of ISO9001 three system smoothly.

In JulyQian'an Zhengda passed API certification.

7.12The standard of GB/T6728 "Cold Bending Hollow Section Steel for Structural Use" drafted, revised and approved by the State Steel Standard Committee was approved and implemented formally on April 1, 2018, filling the blank of hot-dip square tube.

5.18President Zhang Hongshun was invited to attend the seventh four session of the cold bending branch of China Steel Structure Association. At the meeting, President Zhang Hongshun gave the card to the eleven deputy director general of the general steel tube technology committee.

5.8-5.10Zhengda tube and new products were invited to participate in the eighth Tianjin international fire equipment technology exhibition.

5.6The Handan Station, which was jointly organized by the Zhengda Administration and the Handan Municipal Committee for Civil Construction, the Chengan Wenfei, the Chengan CPPCC and the Chengan Wenguang New Bureau, was solemnly opened to celebrate the 19th National Congress for Singing the Motherland and Praising the Heroes of the Tianhong Book Club - the National Calligraphy Circuit Exhibition of Guanwei Pavilion.

4.23Zhengda management was invited to attend the "2017 Algeria International Building Materials Exhibition".

3.31As the director unit of the General Steel Tube Technical Committee of the Cold Bending Branch of China Steel Structure Association, Zhengda Pipe Co., Ltd. successfully hosted the Forum on the First Anniversary of the New National Standard for Hot Galvanized Steel Pipes.

3.24Zhengda pipe has won the qualification of "national A1 class special equipment manufacturing license".

2016

12.6-12.8

Zhengda system is certified by China Classification Society three system.

12.1-12.2Zhengda management passed the EU CE certification smoothly.

10.28"Handan Autumn 2016 project centralized start-up activities and Zhengda pipe technical transformation and expansion of the start ceremony" was held in Zhengda pipe.

9.26Zhengda management was invited to attend the seventh Shanghai China International pipe exhibition.

8.29The standard of GB / T13793 "Longitudinal Welded Pipe" was revised and approved by the State Steel Standard Committee, and was formally implemented on July 1, 2017.

7.24-7.26Zhengda Gas Management was invited to participate in the "Peak Forum on Safety and Management Innovation of Urban Gas Operation and Application of Facilities and Equipment".

6.15Zhengda is elected director of the general steel tube technology committee of the cold bending steel section of China Steel Structure Association.

6.4-6.8Chia Tai attended the German international pipe fair.

6.1The revised and revised GB/T3091-2015 by the Zhengda Steel Bidding Commission has been approved and formally implemented.

2015

2015-2016.4Participate in discussion and validation of GB/T6728 standard.

2014-2015.11Participate in discussion and validation of GB/T13793 standard.

11.25It ranks 369th among the top 500 private enterprises in Chin

11.20The annual comprehensive production of 180 thousand tons of hot-dip galvanized pipe and waste residue has been completed.

10.15Zhang Liheng, director of the comprehensive research office of the general office of the Hebei provincial Party committee, visited the Zhengda management group.